Heating system



H. C. MlEVlLLE.

HEATING SYSTEM.

APPLICATION HLED MAY 29. I920 Patented Mar. 21, 1922.

UNITED STATES. PAT

HERBERT c. MIEvrLLE, or navnnronr, IOWA, ASSIGNOR TO Banana-n sYsrnm onBAxEnIEs orv Anaemia, INQ, or DAVENPORT, Iowa- HEATING, SSTE1IL Specifcation of Letters latent.

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Application filed May 29, 1920. Serial No. 385,167.

To. (ZZZ w ham it may concern.

Be it known that I, HERBERT C. MIEVILLE, a subject of the King ofEngland, residing at Davenport, in the county of Scott and State ofIowa, have invented certain new and useful Improvements in HeatingSystems, of which the following is a specification.

My invention pertains to heating appliances, and has reference to thatclass of such devices which are provided with a multiple burner system,such as are employed in large baking ovens, furnaces, heating plants,and other places wherein vapor produced from oil is used as a fuel.

One of the purposes of the present invention is to improve upon theconstruction of the burner system itself, so as to increase thesimplicity and efiiciency thereof.

Another feature of the device consists in the provision of an auxiliaryburner which can be used for priming purposes, or for maintaining thegenerating process after the same has been fully developed.

It is sometimes desired to operate the system at a low point of flame,so as to reduce the degree of heat which is being furnished thereby, butthis is difiicult to accomplish on account of the danger of the blazebeing entirely extinguished. This danger is largely or completelyeliminated in my device through novel features thereof.

The particular construction, arrangement, and operation of the variousparts of my invention will be more fully comprehended from the followingspecification, reference being had to the drawings accompanying thesame, in which:

Fig. 1 is a plan view of a heating device embodying my invention, brokenaway at one end.

Fig. 2 is a cross-section on the broken line 22 of Fig. 1.

Fig. 3 is a plan view of the auxiliary heater, detached, with the hoodremoved.

4 represents aconduit, of U-shaped form, in which is supported aplurality of burners 5, formed of lava or other non-combustiblematerial, in which are parallel rows of perforations 6, and endperforations 7 At thejoints of the burners 5 are bolts 8, by means ofwhich the sides of the conduit are clamped tightly against the burnerblocks, holding them rigidly in place. At one end there isconnected withthe conduit 4 anintake pipe 9. I A

Supportedin proximity to the conduit 4 is an auxil ary burner,comprising a casing 10, communicating with the conduit 4 by means of aplpe 11, provided with a shut-off valve 12. Supported in the upper partofthe casmg 10 1s a burner 13, having rows of perforations 1'4.Centrally of the burner 13 is a wicking 15, and surrounding the same isa small trough containing a wicking 16. Above the burner 13 is a coil 17connected by a pipe 18 with a feed-chamber 19, the upper part of whichhas a discharge pipe 20 opening into the intake 9. Supported on theburner 13 is a hood 21, provided with perforations 22 in its sides andan opening 23 longitudinally of the top thereof.

In operation, the upper part ofthe auxillary burner 13 is provided witha small quantity of inflammable liquid, and the same ignited. A supplyof oil is then introduced to the coil 17' from any suitable source,which oil becomes vaporized, the gas therefrom being conducted throughthe pipe 18, chamber 19, and pipe 20 to the intake 9,

from whence it passes into the pipe 4, and

through the openings in the burners, above 7 which it is ignited andconsumed. After the flow of the vapor has been fully established thevalve 12 is opened, permitting a portion of the gas to pass into theauxiliary burner, and through the openings therein, such gas thensupplying the flame by means the generating process is continued.

The hood 21 tends to concentrate the heat about the coil 17 intensifyingthe same, and producing better results. It also limits the amount of airwhich mixes with the gas above the burner, which is of. specialadvantage when the supply of such gas is reduced to a minimum, when itis desired to operate the system at a low point of heat.

.It also acts as a shield to prevent the flame from belng extinguishedby air currents when turned to a low point.

.The arrangement of the perforationsfi in parallel spaced apartrows addsto the efficiency of the blaze." Air passes inwardly be-. tween the jetsof gascoming through the perforations, mixing with such gas and forminga product for a central flame of great intensity. The" tendency of the vexhausted gases is'to move upwardly, and free};

of which currents of air are brought in from the side. A constantcirculation of air is thus assured, producing the best results forcombustion and heat efliciency. v

It is usual to ignite the gas for a series of burners at one end of theconduit, the flame spreading from one to another of such burners. Thisprocess is aided in my invention by the end perforations 7 which causethe flame to pass quickly from one of the burners 4 to the next one.

By constructing the conduit 4 of U shaped form, it can be cheaply andeasily produced, by bending a piece of sheet metal into a desired shape.I

If desired, the a vapor can be primarily generated by other means thanthe burner 13, such, for instance, as an electrical gen- A hood for saidauxiliary heating device, having openings at the sides and top thereof;and a coil Within said hood, adapted to re ceive a quantity of liquidfuel and convey it in vapor form to said first-named heating device.

In testimony whereof I afllx m HERBERT C. Mll

si nature. V LLE.

